Index Catalog // ScholarsArchive@OSU

Chitinase production of Arthrobacter sp. BN2

Creator:: Miranda-Chavez, Alcibiades Heli
Abstract:: A chitinase producing bacterium was isolated from soil and identified as a species of Arthrobacter. The organism grew well at temperatures between 27 and 33.5 C, and the chitinase production was highest at 25.5 C. As the temperature increased above the optimum point, the level of enzyme production rapidly decreased,...
Resource Type:: Masters Thesis
Full Text:: ++ enchanced the enzyme production. Under optimum conditions the organism produced 90 units (pg N

Oral immunization for the control of vibriosis in Pacific salmon

Creator:: Nelson, Jim Steel
Abstract:: An oral vaccine was developed for control of vibriosis in Pacific salmon. The vaccine consists of a lyophilized sonicate of cells of Vibrio anguillarum, the causative agent of this disease. The preparation was incorporated into a ration and fed to salmon in fresh water before the fish were transported and...
Resource Type:: Masters Thesis
Full Text:: sharply increased to 58% whereas 200 and 300 p,g resulted in 33% mortality. Salmon receiving no vaccine

Development of a new vaccine delivery system for immunizing fish and investigation of the protective antigens in Vibrio anguillarum

Creator:: Gould, Rowan Wayne
Abstract:: Phenol-water and trichloroacetic acid extracts of Vibrio anguillarum were both antigenic and immunogenic when injected into coho salmon (Oncorhynchus kisutch). Cross-protection against virulent Vibrio anguillarum was observed with whole-cell bacterins and phenol-water extracts prepared from two serologically distinct groups. Gel diffusion studies indicated that intact somatic antigens were serotype specific....
Resource Type:: Dissertation
Full Text:: spray apparatus operated at 6.3 to 7. 0 kilograms per square centi- meter (90 to 100 pounds per square

Hydrolyses of rye grass straw for propagation of Candida utilis

Creator:: Frey, Kurt Leslie
Abstract:: The dilute sulfuric acid hydrolysis of annual rye grass (Lolium multiflorum) straw was investigated. The straw was hydrolyzed in a stainless steel pressure bomb at 121° C, 135° C, and 150° C with 0.5 to 3.0 percent sulfuric acid for time periods up to 40 minutes. These conditions resulted in...
Resource Type:: Masters Thesis
Full Text:: sugars constituted approximately 80 to 90 percent of the total sugars. Galactose and arabinose were

Preparation, evaluation, and use of lyophilized, concentrated dairy starter cultures in cheese and yogurt manufacture

Creator:: Speckman, Calvin Albert
Abstract:: Cultures of Streptococcus lactis and Streptococcus cremoris were grown in sterile 11% nonfat milk (NFM) at 32 C for 17 hr with the pH maintained at 6. 3 with sodium carbonate. The cells were harvested and resuspended in a medium of 5% gelatin, 5% sodium citrate, 2% monosodium glutamate and...
Resource Type:: Dissertation
Full Text:: , Leuconostoc and Propioniibacterium retained a high level of viability (90 to 100%) with GCGS as the sus

Effect of feeding concentrates of Lactobacillus organisms on intestinal colonization by Escherichia coli in swine

Creator:: Muralidhara, K. S.
Abstract:: A Lactobacillus species of human intestinal origin (strain MLC) used in swine feeding experiments was characterized using biochemical, genetic and serological techniques and found to be Lactobacillus lactis. Bottle feeding of the MLC strain in concentrate form (> 10⁹ cfu/ml) resulted in a reduction in both fecal coliforms and the...
Resource Type:: Dissertation
Full Text:: water sys- tem using a water proportioner. After 90 days of such treatment, the coliform counts were

Yersinia ruckeri : a characterization of the carrier state in steelhead trout (Salmo gairdneri)

Creator:: Hunter, Valerie Antoinette
Abstract:: Fish, asymptomatically infected with Enteric Redmouth Bacterium (ERMB), were tested for their ability to transmit bacteria to non-infected fish. Unstressed carrier fish were unable to transmit enough bacteria to cause epizootics or produce carrier fish. However, when the ERMB carriers were stressed with heat, sufficient bacteria were shed to infect...
Resource Type:: Masters Thesis
Full Text:: period, no bacteria was detectable and at no time were these fish capable of infecting other healthy

Evaluation of effectiveness of Rhizobium trifolii strains for Trifolium subterraneum L. (subterranean clover) in southwestern Oregon soils

Creator:: Kibbey, Heather Jean
Abstract:: Twelve high effective Rhizobium trifolii strains were evaluated at four locations in southwest Oregon for the ability to effectively nodulate Mount Barker subterranean clover. All twelve strains possessed antibiotic resistance markers to facilitate identification of strains when extracted from nodules. No significant differences in plant dry weight means could be...
Resource Type:: Masters Thesis
Full Text:: resistance markers to facilitate identification of strains when extracted from nodules. No significant

Pathogenic, antigenic, and immunogenic properties of Aeromonas salmonicida studied in juvenile coho salmon (Oncorhynchus kisutch)

Creator:: Udey, Lanny R.
Abstract:: An additional layer, exterior to the outer membrane cellwall layer, was found on Aeromonas salmonicida cells from aggregating strains. Nonaggregating strains were found to lack this layer. The nonaggregating strains were all avirulent (LD₅₀ greater than 1 X 10 ⁸ CFU/fish) while the majority of the aggregating strains were virulent...
Resource Type:: Dissertation
Full Text:: (no longer manufactured) prior to injection. Serum was collected 90 to 95 days after injection. Fish

Enteric Redmouth Bacterium of salmonids : a biochemical and serological comparison of selected isolates

Creator:: O'Leary, Patrick John
Abstract:: A comparison of the agglutinating and precipatiating antigens of Enteric Redmouth Bacterium (ERMB) was made. There are two major and one minor agglutinating antigens which describe two serotypes (I and II). Only serotype I metabolizes sorbitol. A bacterin from serotype I cross protected against a challenge of bacteria of serotype...
Resource Type:: Masters Thesis
Full Text:: agar are cream colored, smooth, circular and slightly raised with entire edges. No pigmentation has

ScholarsArchive@OSU

Chitinase production of Arthrobacter sp. BN2

Oral immunization for the control of vibriosis in Pacific salmon

Development of a new vaccine delivery system for immunizing fish and investigation of the protective antigens in Vibrio anguillarum

Hydrolyses of rye grass straw for propagation of Candida utilis

Preparation, evaluation, and use of lyophilized, concentrated dairy starter cultures in cheese and yogurt manufacture

Effect of feeding concentrates of Lactobacillus organisms on intestinal colonization by Escherichia coli in swine

Yersinia ruckeri : a characterization of the carrier state in steelhead trout (Salmo gairdneri)

Evaluation of effectiveness of Rhizobium trifolii strains for Trifolium subterraneum L. (subterranean clover) in southwestern Oregon soils

Pathogenic, antigenic, and immunogenic properties of Aeromonas salmonicida studied in juvenile coho salmon (Oncorhynchus kisutch)

Enteric Redmouth Bacterium of salmonids : a biochemical and serological comparison of selected isolates

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search